Contents of /trunk/mkinitrd-magellan/busybox/init/halt.c
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Sat Sep 1 22:45:15 2007 UTC (16 years, 9 months ago) by niro
File MIME type: text/plain
File size: 1234 byte(s)
Sat Sep 1 22:45:15 2007 UTC (16 years, 9 months ago) by niro
File MIME type: text/plain
File size: 1234 byte(s)
-import if magellan mkinitrd; it is a fork of redhats mkinitrd-5.0.8 with all magellan patches and features; deprecates magellan-src/mkinitrd
| 1 | /* vi: set sw=4 ts=4: */ |
| 2 | /* |
| 3 | * Poweroff reboot and halt, oh my. |
| 4 | * |
| 5 | * Copyright 2006 by Rob Landley <rob@landley.net> |
| 6 | * |
| 7 | * Licensed under GPL version 2, see file LICENSE in this tarball for details. |
| 8 | */ |
| 9 | |
| 10 | #include "busybox.h" |
| 11 | #include <sys/reboot.h> |
| 12 | |
| 13 | int halt_main(int argc, char *argv[]) |
| 14 | { |
| 15 | static const int magic[] = { |
| 16 | #ifdef RB_HALT_SYSTEM |
| 17 | RB_HALT_SYSTEM, |
| 18 | #elif defined RB_HALT |
| 19 | RB_HALT, |
| 20 | #endif |
| 21 | #ifdef RB_POWER_OFF |
| 22 | RB_POWER_OFF, |
| 23 | #elif defined RB_POWERDOWN |
| 24 | RB_POWERDOWN, |
| 25 | #endif |
| 26 | RB_AUTOBOOT |
| 27 | }; |
| 28 | static const int signals[] = { SIGUSR1, SIGUSR2, SIGTERM }; |
| 29 | |
| 30 | char *delay; |
| 31 | int which, flags, rc = 1; |
| 32 | |
| 33 | /* Figure out which applet we're running */ |
| 34 | for (which = 0; "hpr"[which] != *applet_name; which++); |
| 35 | |
| 36 | /* Parse and handle arguments */ |
| 37 | flags = getopt32(argc, argv, "d:nf", &delay); |
| 38 | if (flags & 1) sleep(xatou(delay)); |
| 39 | if (!(flags & 2)) sync(); |
| 40 | |
| 41 | /* Perform action. */ |
| 42 | if (ENABLE_INIT && !(flags & 4)) { |
| 43 | if (ENABLE_FEATURE_INITRD) { |
| 44 | pid_t *pidlist = find_pid_by_name("linuxrc"); |
| 45 | if (pidlist[0] > 0) |
| 46 | rc = kill(pidlist[0], signals[which]); |
| 47 | if (ENABLE_FEATURE_CLEAN_UP) |
| 48 | free(pidlist); |
| 49 | } |
| 50 | if (rc) |
| 51 | rc = kill(1, signals[which]); |
| 52 | } else |
| 53 | rc = reboot(magic[which]); |
| 54 | |
| 55 | if (rc) |
| 56 | bb_error_msg("no"); |
| 57 | return rc; |
| 58 | } |